Electronic preamplifier



FIG. 1 is a top, rear perspective view of an electronic preamplifier embodying my new design;

FIG. 2 is a bottom, front perspective view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a side elevation view thereof. 

The ornamental design for an electronic preamplifier, as shown and described. 